Year: 2021
Type: preprint
Abstract: We give full details regarding the new Cauchy-characteristic evolution (CCE) system in SpECTRE. The implementation is built to provide streamlined flexibility for either extracting waveforms during the process of a SpECTRE binary compact object simulation, or as a standalone module for extracting waveforms from worldtube data provided by another code base. Using our recently presented improved analytic formulation, the CCE system is free of pure-gauge logarithms that would spoil the spectral convergence of the scheme. It gracefully extracts all five Weyl scalars, in addition to the news and the strain. The SpECTRE CCE system makes significant improvements on previous implementations in modularity, ease of use, and speed of computation.
Source: arXiv (Cornell University)
Authors: Moxon, Jordan, Scheel, Mark A., Teukolsky, Saul A., Deppe, Nils, Fischer, Nils, Hébert, Francois, Kidder, Lawrence E., Throwe, William
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1189004961, G1434023905, G1903914929, G2032022763, Elements:Collaborative Proposal: A task-based code for multiphysics problems in astrophysics at exascale, G4583451123, Gravitational Radiation and Relativistic Astrophysics, Elements:Collaborative Proposal: A task-based code for multiphysics problems in astrophysics at exascale, WoU-MMA: Research in Black Hole Physics and Relativistic Astrophysics, Maximizing Science Output of LIGO: Improved Detectors and Data Analysis
OpenAlex ID: W4327700320